EP1832644B1 - Procede de poussee de coke et machine de poussee de coke - Google Patents

Procede de poussee de coke et machine de poussee de coke Download PDF

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Publication number
EP1832644B1
EP1832644B1 EP05844863A EP05844863A EP1832644B1 EP 1832644 B1 EP1832644 B1 EP 1832644B1 EP 05844863 A EP05844863 A EP 05844863A EP 05844863 A EP05844863 A EP 05844863A EP 1832644 B1 EP1832644 B1 EP 1832644B1
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EP
European Patent Office
Prior art keywords
coke
vibration
pushing
ram head
lump
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Application number
EP05844863A
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German (de)
English (en)
Japanese (ja)
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EP1832644A4 (fr
EP1832644A1 (fr
Inventor
Kazushige c/o JFE R & D Corporation ISHINO
Teturo c/o Intellectual Property Dept. UCHIDA
Shunichi c/o JFE R & D Corporation 1-1 KAMEZAKI
Yasuhiro c/o Intellectual Property Dept. FUKUSHIMA
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JFE Steel Corp
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JFE Steel Corp
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B45/00—Other details
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B33/00—Discharging devices; Coke guides
    • C10B33/08—Pushers, e.g. rams
    • C10B33/10—Pushers, e.g. rams for horizontal chambers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
    • C10B41/02—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for discharging coke

Definitions

  • the present invention relates to a coke pushing method and a coke pusher machine, which push out coke generated in a coke oven from a carbonization chamber therein, and specifically relates to a coke pushing method and a coke pusher machine, which decrease the coke pushing load and decrease the damages of coke oven walls, thereby attaining life-prolongation of the coke oven walls.
  • coke oven referred to in the present invention signifies the "chamber oven type coke oven”.
  • the chamber oven type coke oven has a row of regenerators at lower section thereof, and has combustion chambers and coke oven chambers above the regenerators with an alternate arrangement thereeach.
  • the coke oven On pushing out the coke (lump coke), generated in the carbonization chamber of coke oven through the dry distillation of coal, from the carbonization chamber using a coke pusher machine, there may occur sticking of coke in the carbonization chamber, which increases the pushing load to apply strong force against the oven walls of the carbonization chamber, resulting in damages of oven walls. If the sticking is serious, the oven walls may be broken or the pusher machine may fail to push out the coke. In these cases, the stuck coke has to be raked out from the chamber by hands after cooling the oven. Accordingly, the coke oven has problems of increase in the repairing work cost of oven walls and decrease in the amount of production caused by the stop of oven operation.
  • a proposed technology is that, on repairing the oven floor bricks in the carbonization chamber of coke oven, dried coke powder is charged into the carbonization chamber so as to fill the concavities on the surface of the oven floor bricks to flatten the surface thereof, thus decreasing the friction between the lump coke and the oven floor during pushing out the coke, (refer to, for example, JP-A-59-187082 , (the term "JP-A” referred to herein signifies "Unexamined Japanese Patent Publication)).
  • a granular (5 mm or smaller size) fire-proof material (such as graphite and Si 3 N 4 ) is spread all over a tilted oven floor in the carbonization chamber before charging the raw material coal in order to decrease the friction between the lump coke and the oven floor during pushing out the coke, thereby preventing the damages of the oven walls, (refer to, for example, JP-A-8-120278 ).
  • both the technologies disclosed in JP-A-59-187082 and JP-A-8-120278 intend to decrease the friction force between the lump coke and the oven floor in the carbonization chamber.
  • the main cause of the generation of sticking of coke and of the increase in pushing load is not the friction force between the lump cake and the oven floor in the carbonization chamber but the phenomenon in which the lump coke being pushed by a ram head of the pusher machine is deformed and broken down during the operation of the pusher machine to push out the lump coke, thus the pushed lump coke spreads in horizontal directions lateral to the pushing direction, which results in the increase of friction force between the lump coke and the side-walls of the carbonization chamber.
  • the Soviet Patent No. 981340 does not use the pusher machine which is adopted by the present invention but applies a vertically-vibrating horizontal shovel attached to a bucket, thus breaking down the coke in the carbonization chamber into the bucket, and then repeatedly scooping out the coke from the oven using the bucket.
  • the method of vibrating shovel takes a long time to take out the coke.
  • JP-A-2003213267 discloses a dent shaped coke puscher.
  • the present invention was derived to cope with the above-described circumstances, and an object of the present invention is to provide a coke pushing method and a coke pusher machine, which push out lump coke from the carbonization chamber of coke oven while surely decreasing the pushing load and decreasing the damages of cove oven walls.
  • the present invention provides the followings.
  • the friction between the lump coke and the oven walls of the carbonization chamber changes from static friction to kinetic friction owing to the vibration, which change decreases the coefficient of friction, thereby decreasing the pushing load.
  • lump coke signifies the total coke within the carbonization chamber, and not limiting to a lump of coke in a block shape formed by adhering individual coke particles. Although coke cracks during the cooling step, individual coke particles closely contact with each other during the pushing step to allow transferring the vibration over the entire coke particles, thus there is no need to form a coke block by adhering individual coke particles.
  • Figure 1 shows a side view of the coke pusher machine for illustrating an embodiment of the present invention
  • Fig. 2 shows a perspective view of the coke pusher machine in an embodiment of the present invention.
  • a lump coke 11 is generated in a carbonization chamber 10 in the coke oven.
  • FIG. 1 and Fig. 2 show a coke pusher machine 20 in an embodiment of the present invention.
  • the coke pusher machine 20 is provided with a pushing ram 21, a drive unit (not shown) for the pushing ram 21, and a ram head 22 located at front end of the pushing ram 21.
  • the pushing face of the ram head 22 pressing against the lump coke 11 is divided into three sections in vertical direction of the ram head 22: an upper pushing face 22a, a middle pushing face 22b, and a lower pushing face 22c.
  • a vibrator 23 is attached to the pushing ram 21 to vibrate the middle pushing face 22b, which has the largest pushing area among the three pushing faces, in the pushing direction via a vibration rod 24.
  • the vibration applied to the lump coke 11 changes the friction between the lump coke 11 and the oven walls of the carbonization chamber 10 from static friction to kinetic friction, thus decreasing the coefficient of friction, which then decreases the pushing load.
  • the damages of the oven walls are prevented, and the operational delay caused by sticking is avoided, thereby increasing the productivity.
  • vibration is applied to the lump coke 11, and when the pushing load becomes at or smaller than the specified load, the vibration is stopped. Since, however, the maximum pushing load generally appears at forward moving distances of the ram head 22 in a range from 1 m to 1.5 m from the point of beginning the pushing, when the forward moving distance of the ram head 22 exceeds 1.5 m, the application of vibration to the lump coke 11 may be stopped. Alternatively, the vibration may be always applied from the point of beginning the pushing to the point of end of the pushing.
  • the direction of vibration of the ram head according to the present invention may be any of the vertical direction of the oven or the pushing direction if only the entire lump coke is vibrated.
  • the vibration mainly in the vertical direction of the oven is difficult to surely transfer the vibration from the ram head to the entire lump coke, and, for example, it is necessary to provide pluralities of projections on the ram head to pierce the lump coke.
  • the vibration is effective only in the vicinity of a portion of lump coke which was pierced by the projections of the ram head, and is difficult to be transmitted to entire lump coke, thus only the pierced portion of lump coke likely breaks down.
  • the vibration mainly in the vertical direction includes the direction of lifting the lump coke, which increases the load to the vibrator. Therefore, the driving capacity of the vibrator has to be increased.
  • the direction of vibration of the ram head according to the present invention is preferably the direction including the vibration component in the pushing direction because the structure of the ram head of the present invention becomes simple and because the driving capacity of the vibrator becomes small. More preferably, the vibration is mainly in the direction of vibration component in the pushing direction. Further specifically, the vibration of the present invention is preferably in parallel to the pushing direction. However, the vibration may be in an obliquely upward direction or an obliquely downward direction.
  • the above description connects the vibrator 23 only to the middle pushing face 22b. It is, however, applicable that the vibrator is connected also to each of the upper pushing face 22a and the lower pushing face 22c, and that the vibration is given to an arbitrary one or more of selected pushing face.
  • the pushing face of the ram head 22 is divided into three sections, and the pushing area of the middle pushing face 22b is the largest among the three pushing faces.
  • the number of divisions and the pushing area ratio among the divided sections may be, however, adequately determined depending on the need.
  • the pushing face of the ram head 22 may not be divided.
  • the frequency band of the vibration is preferably a single frequency between 2 to 100 Hz in view of controllability. Inclusion of two or more frequency components in the band range may be applicable. Regular vibration or irregular vibration may be applicable. If the frequency band of the vibration exceeds 100 Hz, the amplitude of the vibration becomes small so that the effect of the vibration on the lump coke becomes small. A more preferable frequency band of vibration is 60 Hz or less. If the frequency band of vibration becomes smaller than 2 Hz, the energy input to the vibrator to attain sufficient acceleration has to be increased, and the effect of vibration to the lump coke likely becomes insufficient. In particular, the frequency band ranging from 30 to 60 Hz is preferred.
  • the vibration waveform a machine which vibrates the ram head with waveforms containing one or more of sine wave is preferred.
  • the waveform is not necessarily sine wave, and may be the one containing triangle wave, rectangular wave, successive impulse waves, or a wave mixing of them.
  • the acceleration level of the vibration is requested only at 0.5 G or more to apply effective vibration to the lump coke, and 1 G or more is preferable. From the point of mechanical strength of the pusher machine, the acceleration level of the vibration is further preferably 10 G or less.
  • the determination method of the acceleration level is not specifically limited.
  • the acceleration level can be determined by converting the signal, which is generated from an acceleration pickup (Piezoelectric Charge Accelerometer, Type 4383, manufactured by B&K) attached to the vibrating section of the test ram, by a charge amplifier (Charge Amplifier Type 2635, manufactured by B&K), then by storing the converted signal in a personal computer to process therein.
  • an acceleration pickup Piezoelectric Charge Accelerometer, Type 4383, manufactured by B&K
  • a charge amplifier Charge Amplifier Type 2635, manufactured by B&K
  • the vibrator according to the present invention is preferably the one which arbitrarily adjusts frequency and acceleration level.
  • the driving of the vibrator may be done by motor, hydraulic pressure, water pressure, and the like.
  • a vibration mechanism for high temperature load and for narrow space a vibro-hammer, an air-hammer, and the like are applicable.
  • VM Volatile matter
  • the coal blend applicable to the present invention includes the one containing VM of 29% by mass or more or 25% by mass or less as the weighted mean for every lot of the coal blend, which VM content ranges were not applicable in the related art.
  • the VM content in coal blend grade is determined and controlled by sampling of coal at every lot of coal mine, ship, and the like. Depending on the lotwise VM content before charging the coke oven, the lotwise charge amount of coal is blended.
  • the weighted mean VM content is determined by the multiplication of the charge amount of coal and the VM content in each lot, which is then divided by the total charge amount of coal.
  • the analysis of lotwise VM content is given in accordance with JIS M8812. That is, a sample is put in a crucible with a lid. The sample is heated to 900 °C for 7 minutes while avoiding exposure to air. The mass percentage of heating loss to the sample is determined, and then the water content determined at the same time is subtracted from thus obtained mass percentage to derive the VM content.
  • VM content in a coal blend becomes 29% by mass or more
  • the deposition of carbon increases, and the carbon adhered to the oven walls grows.
  • the coke cake and the carbon adhered to the oven walls contact with each other to fail in conducting smooth pushing operation.
  • pushing operation is established without retaining cake even under the contact of carbon with coke cake.
  • the maximum value of lotwise weighted mean VM content in coal blend applicable to the present invention is 40% by mass because generally the maximum VM content in raw material coal grade is 40% by mass. In general, if the VM content in coal blend becomes 25% by mass or less, the gap between the oven wall and the coke cake becomes small.
  • the convex portion of the surface contacts with the coke cake, which fails in conducting smooth pushing operation.
  • the vibration pusher machine of the present invention use of the vibration pusher machine of the present invention, however, the friction between the convex portion and the coke cake becomes small, which allows pushing operation without retaining cake. Since generally the minimum VM content in the raw material coal grade is 15% by mass, the minimum value of lotwise weighted mean VM content in coal blend applicable to the present invention is 15% by mass.
  • the coal blend applicable to the present invention includes the one having 6 kPa or higher expansion pressure in weighted mean for every lot of coal blend, which level of expansion pressures is not applicable in related art.
  • the expansion pressure for each lot of coal blend is determined and controlled by sampling of coal at every lot of coal mine, ship, and the like. Depending on the expansion pressure of every lot before charging the coke oven, the charge amount of coal for every lot is blended.
  • the expansion pressure in weighted mean is determined by the multiplication of the charge amount of coal and the expansion pressure in each lot, which is then divided by the total charge amount of coal.
  • a coal grade is regulated in sizes from 1 to 3 mm, which is then put into a crucible (50 mm in diameter and 70 mm in height) to 775 kg/m 3 of bulk density.
  • a lid is applied to the crucible, and a differential pressure gauge is inserted into the coal.
  • the crucible is heated to 1000°C at a speed of 4°C/min. The maximum pressure difference during the heating process is read.
  • the coal blend applicable to the present invention includes the one having 20% by mass or higher blending rate of high expansion pressure coal, which level of blending rate was not applicable in related art.
  • Examples of high expansion coal grade are: Blue Creek (U.S.), 68 kPa (6, 940 mmH 2 O); South Yakut ( Russia), 34 kPa (3,453 mmH 2 O); Norwich (Australia), 73 kPa (7,450 mmH 2 O); and German Creek (Australia), 43 kPa (A, 420 mmH 2 O).
  • a vibration experiment was conducted to confirm the effect of vibration.
  • a small simulated coke oven 30 having a size of 1 m x 0.8 m x 0.4 m, shown in Fig. 4 .
  • the charged lump coke 11 was pressed by a force applied to side walls 31 of the coke oven 30, and was pushed out at a constant rate under vibration (1 to 110 HZ of frequency, 0.3 to 12 G of acceleration level, sine wave) of a test ram from an end of the lump coke 11. The necessary force for pushing was determined.
  • a half portion of the test ram 32 was able to be vibrated, which portion was vibrated by a vibrator 33 from rear face thereof.
  • Figures 5 to 8 show examples of the variations of pushing force.
  • the horizontal axis is the time (giving the position because the pushing speed is constant), and the vertical axis is the pushing force of the test ram.
  • the acceleration level was determined by converting the signal, which is generated from an acceleration pickup 38 (Piezoelectric Charge Accelerometer, Type 4383, manufactured by B&K) attached to the vibrating section of the test ram, by a charge amplifier 39 (Charge Amplifier Type 2635, manufactured by B&K), and then by storing the converted signal in a personal computer to process therein.
  • the pushing force was determined by a load cell 34.
  • the vibrator 33 used a vibration motor (an off-center weight was rotated at high speed).
  • the vibration began, and ultimately stopped, and then the pushing was stopped.
  • the force reached almost stable level after beginning the pushing, and, on starting the vibration, the pushing force decreased to about half.
  • the pushing force returned to the level of beginning the pushing. The trend shows that the vibration decreases the pushing force to about half.
  • the vibration frequency was 40 Hz, and the vibration level was about 1 G.
  • Figure 6 shows the trend at 50 Hz of vibration frequency and about 1 G of acceleration level
  • Fig. 7 shows the trend at 60 Hz of vibration frequency and about 1.5 G of acceleration level.
  • Both Fig. 6 and Fig. 7 decreased the pushing force to about half owing to the vibration.
  • the vibration frequency was in a range from 2 to 100 Hz and that the acceleration level was in a range from 0.5 to 10 G, which are the range of the present invention, though not shown in these figures, the pushing force could be decreased.
  • the pushing force significantly decreased when the vibration frequency was in a range from 30 to 60 Hz.
  • Figure 8 shows the trend at 30 Hz of vibration frequency and about 0.2 G of acceleration level. Since the acceleration level was small, outside the range of the present invention, the pushing force could not be decreased. For the case that the vibration frequency was 1 Hz and the acceleration level was about 1 G, outside the range of the present invention, the pushing force did not significantly decrease during the pushing operation. As a comparative example, an experiment without applying vibration was conducted, and no significant decrease in the pushing force was attained.
  • pushing of lump coke was conducted in a commercial chamber oven type coke oven using the coke pusher machine 20 shown in Figs. 1 and 2 following the above procedure while applying vibration to the lump coke.
  • the determination of acceleration level was done similar to Example 1.
  • the vibration frequency was 40 Hz and the acceleration level was 1 G.
  • the coal blend used in Example 2 gave 27.2% of the lotwise weighted mean VM content, 4.3 kPa of the lotwise weighted mean expansion pressure, and 17% of the blending rate of high expansion pressure coal.
  • pushing was done without applying vibration to the lump coke, as in the related art.
  • Figure 3 shows the pushing load ratio (relative ratio) between an example of the present invention and a comparative example.
  • the maximum pushing load ratio showed a significant decrease compared with that of the comparative example.
  • the pushing load ratio is expressed by a relative ratio based on the peak value (1.0) of the pushing load in the comparative example.
  • the vibration frequency was 50 Hz and the acceleration level was 2 G.
  • the coal blend used in Example 3 varied the lotwise weighted mean VM content from 24 to 31%, the lotwise weighted mean expansion pressure from 4.1 to 7.2 kPa, and the blending rate of high expansion pressure coal from 11 to 26%.
  • the temperature of the bottom of combustion chamber of the coke oven was 1,240°C, and the total carbonization time was in a range from 18 to 19 hours.
  • Figure 9 shows the relation between the VM content and the maximum pushing load current ratio (relative ratio) for a coal blend giving 4 . 5 kPa of the lotwise weighted mean expansion pressure, and 15% of the blending rate of high expansion pressure coal.
  • Figure 10 shows the relation between the expansion pressure (kPa) and the maximum pushing load current ratio (relative ratio) for a coal blend giving 27.3% of the lotwise weighted mean VM content, and 15% of the blending rate of high expansion pressure coal.
  • Figure 11 shows the relation between the blending rate of high expansion pressure coal and the maximum pushing load current ratio (relative ratio) for a coal blend giving 27.3% of the lotwise weighted mean VM content, and 5.1 kPa of the lotwise weighted mean expansion pressure.
  • the maximum pushing load current ratio is expressed by a relative ratio based on the control value (control level) (1.00).
  • the present invention allows very easy control of coal blend because the maximum pushing load current does not exceed the control level independent of the VM content in coal blend, the expansion pressure of coal blend, and the blending rate of high pressure expansion coal.
  • the cost merit is high because inexpensive coal can be used, such as a coal containing large amount of VM or small amount of VM, or a coal giving high expansion pressure.
  • the maximum pushing load current ratio (relative ratio) was overridden unless establishing adequate VM content range in coal blend, adequate expansion pressure coal blend, and adequate blending rate of high expansion pressure coal. Therefore, a strict control is required for the VM content and expansion pressure of applied coal blend, and further for the blending rate of high expansion pressure coal, which increases the production cost.
  • the vibration changes the friction between the lump coke and the oven walls of carbonization chamber from static friction to kinetic friction, which decreases the coefficient of friction, thereby decreasing the pushing load.
  • the damages of oven walls are prevented, and the operation delay caused by sticking is avoided, thus increasing the productivity.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)

Abstract

La présente invention concerne un procédé de poussée de coke et une machine de poussée de coke qui peuvent réduire de manière appropriée une charge de poussée quand une motte de coke est poussée hors d’une chambre de carbonisation permettant ainsi de réduire le dommage à une paroi de four à coke. Un procédé de poussée de coke et une machine de poussée de coke dans laquelle une face de poussée (22b) vers une motte de coke (11) d’une tête de bélier (22) vibre dans la direction de poussée par l’action d’un vibrateur (23), pour ainsi réaliser la poussée tout en communiquant une vibration à la motte de coke (11).

Claims (19)

  1. Procédé de poussée de coke comprenant l'étape qui consiste à expulser du coke en morceaux d'une chambre de carbonisation d'un four à coke en pressant une tête de poussoir d'une machine de poussée contre le coke qui se trouve dans la chambre de carbonisation, tout en appliquant des vibrations au coke.
  2. Procédé de poussée de coke selon la revendication 1, étant précisé que les vibrations sont appliquées au coke en morceaux quand la charge de poussée contre celui-ci atteint ou dépasse une valeur spécifiée.
  3. Procédé de poussée de coke selon la revendication 1, étant précisé que les vibrations sont appliquées au coke en morceaux quand la distance de déplacement de la tête de poussoir à partir de la position du début de la poussée est située dans une plage spécifiée.
  4. Procédé de poussée de coke selon l'une quelconque des revendications 1 à 3, étant précisé que l'on applique les vibrations en faisant vibrer la tête de poussoir.
  5. Procédé de poussée de coke selon la revendication 4, étant précisé que la tête de poussoir est divisée en plusieurs sections, dans le sens vertical, et les vibrations sont appliquées à l'une au moins de ces trois sections divisées.
  6. Procédé de poussée de coke selon l'une quelconque des revendications 1 à 5, étant précisé que la direction des vibrations de la tête de poussoir est constituée par une direction des vibrations comprenant au moins une composante de direction de poussée.
  7. Procédé de poussée de coke selon l'une quelconque des revendications 1 à 6, étant précisé que les vibrations de la tête de poussoir sont constituées par des vibrations comprenant une ou plusieurs composantes de fréquence allant de 2 à 100 Hz.
  8. Procédé de poussée de coke selon l'une quelconque des revendications 1 à 7, étant précisé que les vibrations de la tête de poussoir sont constituées par des vibrations qui ont une forme d'onde, comprenant une ou plusieurs sortes d'onde sinusoïdale.
  9. Procédé de poussée de coke selon l'une quelconque des revendications 1 à 8, étant précisé que les vibrations de la tête de poussoir sont à un niveau d'accélération situé au moins dans une plage de 0,5 à 10 G.
  10. Procédé pour fabriquer du coke, comprenant les étapes qui consistent à charger un mélange de houille dans un four à coke pour produire du coke, et à expulser du coke en morceaux d'une chambre de carbonisation en pressant une tête de poussoir d'une machine de poussée contre le coke en morceaux qui se trouve dans la chambre de carbonisation du four à coke, tout en appliquant des vibrations au coke.
  11. Procédé pour fabriquer du coke selon la revendication 10, étant précisé que la teneur moyenne, pondérée par lot, de matière volatile dans le mélange de houille est de 29 % en masse ou plus, ou de 25 % en masse ou moins.
  12. Procédé pour fabriquer du coke selon la revendication 10 ou 11, étant précisé que la pression de détente, pondérée par lot, du mélange de houille est de 6 kPa ou plus.
  13. Procédé pour fabriquer du coke selon l'une quelconque des revendications 10 à 12, étant précisé que le taux de mélange d'une houille présentant 20 kPa ou plus de pression de détente est de 20 % en masse ou plus dans le mélange de houille.
  14. Machine de poussée de coke qui expulse un coke en morceaux d'une chambre de carbonisation d'un four à coke en pressant une tête de poussoir contre le coke qui se trouve dans la chambre de carbonisation, comportant des moyens pour faire vibrer la tête de poussoir.
  15. Machine de poussée de coke selon la revendication 14, étant précisé que la tête de poussoir est divisée en plusieurs sections, dans le sens vertical, et que les moyens pour faire vibrer la tête de poussoir font vibrer l'une au moins de ces sections divisées.
  16. Machine de poussée de coke selon la revendication 14 ou 15, étant précisé que la direction des vibrations de la tête de poussoir est constituée par une direction des vibrations comprenant au moins une composante de direction de poussée.
  17. Machine de poussée de coke selon l'une quelconque des revendications 14 à 16, étant précisé que les vibrations de la tête de poussoir comprennent une ou plusieurs composantes de fréquence allant de 2 à 100 Hz.
  18. Machine de poussée de coke selon l'une quelconque des revendications 14 à 17, étant précisé que les vibrations de la tête de poussoir sont constituées par des vibrations qui ont une forme d'onde, comprenant une ou plusieurs sortes d'onde sinusoïdale.
  19. Machine de poussée de coke selon l'une quelconque des revendications 14 à 18, étant précisé que les vibrations de la tête de poussoir sont à un niveau d'accélération situé au moins dans une plage de 0,5 à 10 G.
EP05844863A 2004-12-28 2005-12-27 Procede de poussee de coke et machine de poussee de coke Ceased EP1832644B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004379516 2004-12-28
PCT/JP2005/024240 WO2006070924A1 (fr) 2004-12-28 2005-12-27 Procede de poussee de coke et machine de poussee de coke

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EP1832644A1 EP1832644A1 (fr) 2007-09-12
EP1832644A4 EP1832644A4 (fr) 2011-03-02
EP1832644B1 true EP1832644B1 (fr) 2012-04-25

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EP05844863A Ceased EP1832644B1 (fr) 2004-12-28 2005-12-27 Procede de poussee de coke et machine de poussee de coke

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EP (1) EP1832644B1 (fr)
KR (1) KR100893468B1 (fr)
CN (1) CN101048481B (fr)
TW (1) TWI299359B (fr)
WO (1) WO2006070924A1 (fr)

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TW200641108A (en) 2006-12-01
KR100893468B1 (ko) 2009-04-17
EP1832644A1 (fr) 2007-09-12
TWI299359B (en) 2008-08-01
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